From d171822dcecc7b234d63147270d21307605a6347 Mon Sep 17 00:00:00 2001
From: bunnei <bunneidev@gmail.com>
Date: Wed, 16 Dec 2015 18:49:20 -0500
Subject: [PATCH] command_processor: Add an assertion to ensure LUTs are not
 written past their boundaries.

---
 src/video_core/command_processor.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/video_core/command_processor.cpp b/src/video_core/command_processor.cpp
index 7409534b6f..6540ccb264 100644
--- a/src/video_core/command_processor.cpp
+++ b/src/video_core/command_processor.cpp
@@ -474,6 +474,9 @@ static void WritePicaReg(u32 id, u32 value, u32 mask) {
         case PICA_REG_INDEX_WORKAROUND(lighting.lut_data[7], 0x1cf):
         {
             auto& lut_config = regs.lighting.lut_config;
+
+            ASSERT_MSG(lut_config.index < 256, "lut_config.index exceeded maximum value of 255!");
+
             g_state.lighting.luts[lut_config.type][lut_config.index].raw = value;
             lut_config.index = lut_config.index + 1;
             break;